PORTLAND, Maine — Maine State Police say additional DNA testing has been necessary to identify the remains of a woman found in a freezer at a Lewiston storage unit.

Spokesman Stephen McCausland said Friday the work will continue into next week. He said DNA comparisons being examined by the state police crime lab have been complicated because of the condition of the remains, so additional testing was needed.

Police believe the remains discovered a week ago were those of Kitty Wardwell. The storage unit was rented by her boyfriend Frank Julian, who died Oct. 1 at the age of 80. Wardwell has been missing for 28 years.